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Unread 19-09-2016, 14:26
cad321 cad321 is online now
Jack of all trades, Master of none
AKA: Brian Wagg
FRC #2386 (Trojans)
Team Role: Alumni
 
Join Date: Jan 2013
Rookie Year: 2012
Location: Burlington, Ontario
Posts: 319
cad321 is just really nicecad321 is just really nicecad321 is just really nicecad321 is just really nice
pic: Adjustable WCD Proof of Concept

This is a project I started to work on earlier in the summer during the WCD craze. It origonally started as just a basic WCD with inverted CIMs. However as I progressed I had troubles deciding on the chassis size I wanted to make. I knew I wanted to make a chassis with a 120in perimeter as per Strongholds rules. However I didn't know if I wanted a square, long or wide chassis. That's when I decided to do all of them.

I have created a CAD model of a WCD, where through the aid of designs tables in SolidWorks, I am able to select the Perimeter of the chassis and the length of it. From there a few formulas take care of the rest and voila, you have the bones to a new chassis in a matter of moments.

Right now it still has lots of flaws and isn't near complete (still missing a belly pan, guessets to hold the tubing together, bumper mounts etc.). I also need to be careful when choosing dimensions for the chassis as so not to choose something riculously small. So long as the length/width is more than the combined size of components between the rails, it works. I have incorperated the spreadsheet made by Paul Copioli into my design tables so that whenever I update the length of the chassis, my chain runs update to a proper length for tensioning.

I am hoping to post the solidworks files to grabcad soon, however I'm currently having some troubles exporting them with all of the design tables. The next step hopefully should be making a belly pan with a truss pattern in it that will adapt to the size of the chassis.

Any questions or comments please feel free to ask.

Last edited by cad321 : 19-09-2016 at 17:00.
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